CVE-2026-39255CWE-120

CVE-2026-39255

Critical · published August 18, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
56.2
In the wild
Unconfirmed
What it is

Buffer Overflow vulnerability in SteelSeries GG (macOS) v.107.0.0 allows a remote attacker to execute arbitrary code via the libSSEdevice.dylib, dup_wcs components

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00802 · 56.2th percentile
Weakness
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2026-08-18T01:16Z
References (1)
https://github.com/Cipher-Security-Labs/research/tree/main/CSL-2026-03 · [email protected]
EPSS history
Timeline
  • 17 AUG 00:00Z
    Buffer Overflow vulnerability in SteelSeries GG (macOS) v.107.0.0 allows a remote attacker to execute arbitrary code via the libSSEdevice.dylib, dup_wcs…
    cvelistv5